Plaiting-machine.



T. F. HAGERTY.

PLAITING MACHINE.

APPLICATION FILED ocT.2. 1914v Patented Sept. 28, 1915.

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flzomfiw Fifizgeriy UMBIA PLANOGRAPH C0.,\VASHXNGTOI\ u L THOMAS F. HAGERTY, OF NEW YORK, N. Y.

PLAITINGr-MACHINE.

. Specification of Letters Patent.

Patented Sept. 28, 1915.

Application filed October 2, 1914. Serial N o. 864,684.

To all whom it may concern:

Be it known that I, THOMAS F. HAGERTY, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented new and useful Improvements in- Plaiting-Machines, of which the following is a specification.

This invention relates to plaiting machines and it may be regarded as an improvement on the device of this class for which Letters Patent of the United States, No. 659,171, were granted to me on the sec- 0nd day of October, 1900.

One object of the present invention is to provide simple and effective means whereby the plaiting blade may be adjusted without unscrewing or displacing it in the holder.

A further object of the invention is to enlarge the range of the throw of the cam which actuates the blade-carrying frame so that a larger sized plait may be made .without resorting to the use of different sized cams and thenecessity for exchanging and adjusting the same.

A further object of the invention is to simplify and improve the manner of mounting the upper pressure roll to enable said roll to be quickly lifted to an inactive position in order to enable access to be had to the work for examination or in the event of accident.

A further object of the invention is to provide frictionalfeed meansfor actuating the feed roller whereby said feed roller may be moved any required distance without limitation to a certain unit or a multiple thereof, as is the case when the feed mechanism consists of a pawl and ratchet, as shown in my previous patent.

With these and other ends in view which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fullydescribed and particularly pointed out in the claims.

In the accompanying drawing has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the claims may be resorted to when desired. 1, a In the drawing,Figure 1 is a side elevation of a plaiting machine constructed in'ac cordance with the invention. Fig. 2 is a side elevation showing the opposite side of the machine. Fig. 3 is a sectional detail View taken on the line 33 in Fig. 1. Fig. 4 is a sectional detail view taken on the line 4 1 in Fig. 1. Fig. 5 is a sectional detail View taken on the line 5-5 in Fig. 2. Fig. 6 is a sectional detail view taken on the line 66 in Fig. 5. v

Corresponding parts in the several figures are denoted by like characters of reference. The frame 15 of the improved machine is provided with bearings for the lower hollow roller 16 which will be designated as the feed roller. The upper roller 17, known as the pressure roller, is supported for rotation in bearings provided in a pair of arms 18 which are pivoted on the frame at 19, said arms being connected with the frame by tension springs 20. arms 18 may by means of a cam lever 21 be thrown upward against the tension of the springs 20, and the pressure roller may thus be supported in a raised position, as indi- The roller carrylng cated in dotted lines in Fig. 1, thereby rendering the work convenient of access and inspection.

The mainframe supports a rock shaft 22 having arms 23 carrying a transverse shaft 24 upon which the plaiting blade 25 is mounted by means of a cap 26 and set screws 27. The main frame also supports the driving shaft 28 which may receive motion from any convenient source of power and which carries a trip cam 29 engaging atrip lever 30 that extends from the blade carrying shaft 24.- and which is connected with one of the arms 23 by a contractile spring 31. It is obvious that this construction is de a rocking or oscillatory movement which will be so timed that on the feed movement of the blade it will be forced in the direction of the feed roller, while during its retractive movement it will be elevated so as to exert no pressure against the fabric that isbeing operated u on.

The driven .sha t 28' carries a disk 32 fixed thereon by'a set screw 33 having in its face a groove or slot 3 1 wherein a block 35 is adjustably secured by a set screw 36, said block carrying an eccentric 37, said block and eccentric being provided with an oblongslot 38 for the passage of the driving shaft 28. It will be readily seen that by simply changing the position'of the block signed to impart to the blade carrying shaft 35 relative to the disk 32 the throw of the eccentric 35 may be varied, the range of adjustment being limited only by the length of the oblong slot 88. It will be seen that by this simple construction I am enabled to provide for a relatively wide range of adjustment which in my previouspatent and with which said eccentric is providedf The pin or stud 43 is shouldered, as best seen at 46, Fig. 3, and said'pin issecured adjustably in an arcuate slot 4'? in one of the arms 23 .by means of a thumb nut 48 threaded thereon, It will be seen that by means ofthe thumb nut 4C8 thepin 4E3 is'seeured adjustably in the slot 47 without interfering with the adjustment of the eccentric 42; the latter may be independently adjusted about the axis of the pin 43 by first loosening the set screw 4A which lattenwhen tightened, secures the eccentric against displacement, It will be'seen that by adjustment of the eccenri ,2 t e a ms 2.3 carry g. the b ade cal?- rying sh'aft'may be adjusted so as to vary the position of said blade carryingshaft th r p ct o th rollers, thus enabli g such adj 'istment to, be efiectedat any time without necessity for loosening the blade, the latter being an operation ofsome delicacy which should not be performed except I by a skilled mechanic,

It will be observed that the arcuate slot 47 has been formed in a bracket 49 that extends from one of the arms 23, but as said bracket is integral portion .ofthe arm, the'slot'gmay well be said to be formed in a v arm a r The, driving shaft 28 carries a 0r chuck 50, having a diametrical groove ;.51 wherein is secured adjustably bymeans of a set screw 52 a block 53 having a pin v54:

whereon is journaled one .end oil a pitman 55, the other end of which. is pivotally. connected with an arm 56' extending from the oscillatory cap. plate 57 of a friction device which includes a cylindrical casing 58 mounted on the end of the feed roller 16, said casing being provided with, a, hub or flange 59 on which the. cap plate may rock. The cap plate carries a rectangular shoefSO between which and the rim of; the casing58 friction'rollers 61 are positioned, saidrollers e ng Pr ssed; by p g 62 ,th rre ite ends of which'bear against offsets "63 at diagonally opposite corners of the shoe. It Will be obvious that by rocking the shoe carrying cap plate in one direction the spring pressed friction rollers will be gripped between the converging walls of the rectangular shoe 60 and the' rimuofthe casing 58, thereby'causing the latter to be when a pawl and ratchet ,f eedris employed.

The plractical result is thatthe width ofrthe under lay ofthe plait may be varied almost indefin te y nd at w en ed a: v

mpQrh a i g f m er al y e effected without detr-afiting frem thevisible result,

In the useof themachine the material to V be plaited is guided between tension rollers, indicated at 6A, beneath the plaiting blade and between the coacting rollers, -On;the r tr ting mo men t rm o which th blad carrying shaft i mt d h s h ft i l be rock d, by he r p m chanism pr v ded f r h p p s o l f ina he l e, hich er n he d n ing move,-

ment will be moved in the direction of the feed ol erbv he am of the rip' n m so asto. eng h mat rial d, form a plait which, by the advancing movement of the fe d ro ler c rse y h fri ti n feed.

mechanism, will be carried between the rollers and pressed. The length of the throw which determines the width of the pla e wi l be determi e p evious a j stment, e he Pin 413111 the areuete slot while the positioning oat-the plgaiting blade with respect to the rollersmay be regu:

lewd by adirs meh QJE the eccen ri 2. i

Fr mv the fio es ina d criptio taken in connection with the. drawing hereto annexed, it will be seen that I haYeproduced a plaijt ing machine of simple construction, of great capaci y e far as t re ormanc or Work is c n er ed; amt ap l .01? all nece sa y dgustments zw theut re ort ng o ski led 1a or.

It is. te e hl e o cl thatiwhen the chine is inoperationtherollers: are to be h a d. utmasmuch sis-means for so, doing are well known. in'machines; of this class,

deta ed il st ation t er of'is deem d il nec a y-r. i a

Having thii de er bed the inve t n, h is claimed? asnew, is V ,1. 1111 a nla t nam eh me, a nact: ing feed and pr'essurerollers, a rock'sha-ft ng!" arm ex en ing ther rqm, ne of sa d: being nr ricledz th. a cuate slot, a shaft carried by said arms, a blade carried by said shaft and extending between the rollers, a bearing pin adjustably mounted in the arcuate slot, an eccentric mounted upon and adjustable about the axis of the bearing pin, a driven shaft having an eccentric, and a pitman connecting the last named eccentric with the eccentric on the bearing pin to provide for the primary adjustment of the arms carrying the blade carrying shaft and the positioning of the latter with respect to the rollers.

2. In a plaiting machine, a frame, coacting rollers, rocking members carrying a blade carrying shaft, one of said rocking members having an arcuate slot, a shouldered pin adjustable in said slot, an eccentric adjustable about the axis of said pin, a driven shaft, an eccentric adjustable with respect to the driven shaft to vary the throw of said eccentric, and a link connection between the last named eccentric and the eccentric which is adjustable about the axis of the pin; the adjustment of the eccentric about the axis of the pin providing for the primary adjustment of the rocking members to vary the position of the blade with respect to the rollers, and the adjustment of the eccentric on the driving shaft providing for the varying of the throw of the rocking members without resorting to exchange of I cams.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS F. HAGERTY. Witnesses:

WM. BAGGER, BENNETT S. J ONES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of iatents, Washington, D. 0. 

